Masters Degrees (Electrical and Electronic Engineering)

 

Recent Submissions

  • A 3-axis attitude control system hardware design for a CubeSat 

    Gerber, Jako (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: With CubeSats becoming popular as a cheap alternative to larger satellites, the need for advanced miniature attitude determination and control systems (ADCS) arises to meet the pointing requirements of ...

  • Beamforming for radio astronomy 

    Van Tonder, Vereese (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: Beamforming is a technique used to combine signals from an array of antennas to effectively synthesize a single aperture and beam. In the Radio Astronomy community the technique is used to obtain a ...

  • Development of a satellite network simulator tool and simulation of AX.25, FX.25 and a hybrid protocol for nano-satellite communications 

    Le Roux, Jan-Hielke (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: Nano-satellites are mostly used in lower earth orbit applications, where communication intervals are limited, often to a combined total of less than one hour per day. With these type of inherent limitations ...

  • Design and development of a satellite ground station for water resource monitoring 

    Mafukidze, Harry D. (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: The SU Department of Forestry has the responsibility to monitor, assess and suggest management processes for water resources in some remote areas. The researchers need information on wind speed, wind ...

  • Techniques for enhancing the PLD growth of superconducting YBCO thin films 

    Hardie, Graham Lyall (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: High Temperature Superconductors (HTS) exhibit exceptional electrical properties that make them attractive candidates for numerous electronic devices and applications. However, constructing working ...

  • Proof of concept : home automation solution with potential for seamless integration and vast expansion 

    Sawyer, Guy (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: The ever-increasing existence of electronic systems and devices within the residential environment, along with the human desire to simplify life and daily routine, is generating increased interest in ...

  • The design and implementation of a prototype digital video watermarking scheme with dynamic traitor tracing 

    Salotto, Antony (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: We design and implement a prototype digital watermarking scheme that uses spread-transform dither modulation to embed hidden binary message signals into uncompressed digital video signals. The hidden ...

  • Conditional random fields for noisy text normalisation 

    Coetsee, Dirko (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: The increasing popularity of microblogging services such as Twitter means that more and more unstructured data is available for analysis. The informal language usage in these media presents a problem ...

  • Concise analysis and testing of a software model of a satellite remote sensing system used for image generation 

    Van der Westhuizen, Lynette (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: The capability of simulating the output image of earth observation satellite sensors is of great value, as it reduces the dependency on extensive field tests when developing, testing and calibrating ...

  • Intelligent elevator control based on adaptive learning and optimisation 

    Jordaan, Edzard Adolf Biermann (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: Machine learning techniques have been around for a few decades now and are being established as a pre-dominant feature in most control applications. Elevators create a unique control application where ...

  • Time domain metrology for MeerKAT systems 

    Matthysen, Nardus (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: This work in this study covers a powerful technique to derive propagation and scattering information in an expedient fashion. Expedient because time-domain (TD) data gathers a broad spectrum in a single ...

  • Design of a reluctance synchronous machine for an electric vehicle with a multi speed gearbox 

    Vorster, Christiaan Willem (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: Conventional electrical vehicles (EVs) favour mostly permanent magnet machines with single speed gearboxes. This is understandable, the PM machine has a high power density making the electrical machine ...

  • Design and implementation of generic flight software for a CubeSat 

    Heunis, Andre Emile (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: The main on-board computer in a satellite is responsible for ensuring the correct operation of the entire system. It performs this task using flight software. In order to reduce future development costs, ...

  • Position sensorless control of a transverse-laminated reluctance synchronous machine 

    Barnard, Francois Jacobus Wessels (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: The focus of this thesis is position sensorless control of a transverse-laminated reluctance synchronous machine. Rotor position information is required for high-performance closedloop control of the ...

  • Optimal estimation and sensor selection for autonomous landing of a helicopter on a ship deck 

    Irwin, Shaun George (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: This thesis presents a complete state estimation framework for landing an unmanned helicopter on a ship deck. In order to design and simulate an optimal state estimator, realistic sensor models are ...

  • Mathematical and numerical analysis of electrospraying electrodynamics 

    Pieterse, Cornelius Louwrens (Stellenbosch : Stellenbosch University, 2014-12)
    ENGLISH ABSTRACT: The electrodynamics of arbitrary, point-to-plane electrospraying geometries, were investigated in this research both analytically and numerically. Electrospraying is the process during which particles ...

  • Attitude determination and control system for EyasSAT for Hardware In the Loop application 

    Groenewald, Christoffel Johannes (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: An Attitude Determination and Control System (ADCS) demonstrator and testing platform was required for satellite engineering students. The ADCS demonstrator and testing platform will allow students to ...

  • Using Micro-Doppler radar signals for human gait detection 

    Alzogaiby, Adel (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: This work entails the development and performance analysis of a human gait detection system based on radar micro-Doppler signals. The system consists of a tracking functionality and a target classifier. ...

  • IQ reflected power canceller for an FMCW radar 

    Stofberg, Anneke (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: Large close range environmental reflections or poor isolation between the transmit and receive paths of an FMCW radar can overload the receiver. The In phase and Quadrature phase (IQ) Reflected Power ...

  • RFI mitigation in radio astronomy 

    Thompson, Nicholas Christopher (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: Technical advances in electromagnetics, signal processing and processing power have led to a significant increase in sensitivity and accuracy in radio telescopes. With this increase in sensitivity, radio ...

  • Correlation between SQUID and Fluxgate Magnetometer Data-sets for Geomagnetic Storms: Hermanus 

    Matladi, Thabang-Kingsley (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: Superconducting QUantum Interference Devices (SQUIDs) are fairly recent types of magnetometers that use flux quantization combined with Josephson tunnelling to detect very faint (< 10¯15 T) magnetic ...

  • Increasing distributed generation penetration when limited by voltage regulation 

    Nye, Jonathan Mark (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: This work investigated the influence of photo-voltaic generators on the voltage control of distribution feeders and the methods that can be used to increase the maximum penetration levels of these feeders. ...

  • Design and construction of a modem for satellite use 

    Van Wyk, Hendrik Petrus Daniel (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: In this thesis the design and testing of the baseband components of a modem intended for use as a telemetry and control link for a low earth orbit satellite is presented. This includes parts of the ...

  • Development of a radiation resistant communication node for satellite sub-systems 

    Thesnaar, Emile Jacobus (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: Within a complex electronic system, sub-system communication forms the backbone of the functionality of any satellite. It allows multiple processors to run simultaneously and data to be shared amongst ...

  • Development of a real-time transient analyser for the SKA 

    Botha, Antheun (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: The extension of the Karoo Array Telescope (KAT), MeerKAT, will be the most sensitive radio telescope in the southern hemisphere until it is superseded by the completion of the Square Kilometre Array ...

  • 3-Axis geomagnetic magnetometer system design using superconducting quantum interference devices 

    Kilian, Anton Theo (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: This work discusses the design of a 3-axis Geomagnetometer SQUID System (GSS), in which HTS SQUIDs are used unshielded. The initial GSS installed at SANSA was fully operable, however the LN2 evaporation ...

  • Real-time Software Hand Pose Recognition using Single View Depth Images 

    Alberts, Stefan Francois (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: The fairly recent introduction of low-cost depth sensors such as Microsoft’s Xbox Kinect has encouraged a large amount of research on the use of depth sensors for many common Computer Vision problems. ...

  • A fountain code forward error correction strategy for SensLAB applications 

    Du Toit, F. J. (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: The discovery of sparse graph codes, used in forward error correction strate- gies, has had an unrivaled impact on Information theory over the past decade. A recent advancement in this field, called ...

  • Model predictive control of AC-to-AC converter voltage regulator 

    Chewele, Youngie Klyv (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: The development of fast and efficient processors, programmable devices and high power semiconductors has led to the increased use of semiconductors directly in the power supply path in order to achieve ...

  • Design of an RF ion thruster 

    Botha, Johannes Rudolf (Stellenbosch : Stellenbosch University, 2014-04)
    ENGLISH ABSTRACT: Recent years have seen a decline in the rate of space exploration due to the inefficiency of chemical rockets. Therefore alternative fuel efficient propulsion methods are being sought to enable cost ...

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